Adventists are the original hipsters.

Oh, we were vegetarian/vegan before that was trendy.
We knew smoking was bad for you before it was widespread medical knowledge. We knew it all along thanks to Sister White.
I grew up on Arthur Maxwell's children's stories. Oh, you've never heard of them? Non-Adventists usually haven't.
Jewelry/coffee drinking is too mainstream worldly.
POTLUCKS LOL AMIRITE. Yeah, it's an Adventist thing; you probably wouldn't understand.
My favorite food is wheat gluten/Ceder Lake products/Fri Chik/Special K casserole/etc. Mmmm, Roma. I'm totally craving carob chips right now!
We live longer than everyone else because of our awesome lifestyles. My grandma is 134 years old and still goes to church 3 times a week/volunteers everywhere/lifts weights/runs marathons.
Kellogg's has Adventist roots. That's right, breakfast exists because of us.
Round Communion wafers and wine are so mainstream. We have square crackers and grape juice.
What am I listening to? They're the Heritage Singers; you've probably never heard of them.
You're eating a bacon sandwich at McDonalds??? Bourgeois sheep BADVENTIST!!!
Going to church on Sunday is too mainstream. Saturday church-going is where it's at. Everyone else is wrong; we have the TRUTH.
We did that whole "JESUS IS COMING ON THE 22ND!!!!! Oh, psych, He didn't come after all... It's because we didn't count right/a spiritual judgment not visible to us here on earth happened instead!" first, before Harold Campbell and all those other posers.

What Seventh-day Adventists believe
Hipster definition from Urban Dictionary